help me, I can't run

Hi, I installed railsinstaller.

and ...

rails s

TCPServer Error: Permission denied - bind(2)
Exiting
C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/utils.rb:73:in
'initailize':permission denied - bind(2) (Errno::EACCES)
  from C:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/utils.rb:73:in
'new'

.................................

What's the problem? How do you solve a problem?

have u tried the latest railsinstaller?

Windows or some firewall you have installed in your system is blocking
the port.

You can avoid that by starting the server and "just listen" to the
local address:

rails server -a 127.0.0.1

Then you visit http://127.0.0.1:3000/